diff options
| author | Li Lingfeng <lilingfeng3@huawei.com> | 2023-08-03 15:17:11 +0800 |
|---|---|---|
| committer | Song Liu <song@kernel.org> | 2023-08-15 09:40:26 -0700 |
| commit | 7eb8ff02c1df279bf7f7f29b866beb655a9eebe9 (patch) | |
| tree | cb3020d5e092ac44bef479e32bb05730aeafbc06 /drivers/md/raid5-cache.c | |
| parent | 892da88d1cd93426e9c6d7717876ca705fe2b9fa (diff) | |
md: Hold mddev->reconfig_mutex when trying to get mddev->sync_thread
Commit ba9d9f1a707f ("Revert "md: unlock mddev before reap sync_thread in
action_store"") removed the scenario of calling md_unregister_thread()
without holding mddev->reconfig_mutex, so add a lock holding check before
acquiring mddev->sync_thread by passing mdev to md_unregister_thread().
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20230803071711.2546560-1-lilingfeng@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
Diffstat (limited to 'drivers/md/raid5-cache.c')
| -rw-r--r-- | drivers/md/raid5-cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index 2eac4a50d99b..a29b9650260a 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -3168,7 +3168,7 @@ void r5l_exit_log(struct r5conf *conf) { struct r5l_log *log = conf->log; - md_unregister_thread(&log->reclaim_thread); + md_unregister_thread(conf->mddev, &log->reclaim_thread); /* * 'reconfig_mutex' is held by caller, set 'confg->log' to NULL to |